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Finding the Fourth Proportional to 371,053.68, 511,812 and 234,945.78

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Solution

The fourth proportional to 371,053.68, 511,812 and 234,945.78 is: 324,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,053.68 : 511,812 = 234,945.78 : x
  2. Step 2: Convert to fraction form
    371,053.68/511,812 = 234,945.78/x
  3. Step 3: Cross multiply
    371,053.68x = 511,812 × 234,945.78
  4. Step 4: Simplify right side
    371,053.68x = 120,248,069,553.36
  5. Step 5: Solve for x
    x = 120,248,069,553.36/371,053.68
  6. Step 6: Final answer
    x = 324,071.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.